› added 10 years ago

301

TIL that all time travel movies are banned in China.

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KY67E TIL about one in every 220 Americans was addicted to opioids in the 1890s, mainly from patent medicines, and one of the most popular treatments for addiction was injections of 'bichloride of gold', which sounded impressive but had no medical effects
X016R TIL the inner planets of the solar system are made of rocky planets while the outer planets are made of gas is due to the high temperatures made only elements with high melting points stay closer to the sun. The other elements are vaporized and blasted further away where it is cooler.
kJV8g TIL that spending 76 minutes a day outside reduces a child’s chance of becoming short-sighted by 50%.
6Erw8 TIL in 1973 a Concorde aircraft prototype performed the longest observation of a total solar eclipse (74 minutes)
VBkvQ TIL Why having doppelgangers are so unnerving